Perhaps you should try some spelling variations:
"informationen aktuelle" » "informationen visuelle", "annotationen aktuelle", "informationen anteil"
informatik aktuelle » informatik kulturelle
formate kultureller » form kultureller, normalitat kultureller, informatik kulturelle

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("informationen aktuelle") OR ("((((informatik aktuelle) or (formate kultureller))) or (informatik akademie))")).
• Removing quotes may allow a broader search: (( informationen aktuelle ) or ( ((((informatik aktuelle) or (formate kultureller))) or (informatik akademie)) )).
• Adding a wildcard symbol may retrieve word variants: (("informationen aktuelle") or ("((((informatik aktuelle) or (formate kultureller))) or (informatik akademie))"))*.